Lamp-shade holder.



S. B. VAN RANST.

LAMP SHADE HOLDER.

APPLICATION FILED 00126, 1910.

1,076,848, Patented Oct. 28, 1913.

WITNESSES: 3 INVENTOR S BY v mwf Q @4 4 ATTORNEYS STA 11' ES PATENT SAMUEL B. VAN RANST, 0F SYRACUSE, NEW YORK, ASSIGNOR T0 CROUSE-HINIDS GOMPANY, OF SYRAGU$E, NEW YORK, A CORPORATION 01!? NEW YORK.

:LllA-MPSH.ADE HOLDER.

intents.

specification of Letters Patent.

Patented Oct. 28, 1913.

Application filed October 6, 1910. Serial No. 585,603.

To all whom it may concern:

Be it known that I, SAMUEL B. VAN Ransr, oi Syracuse, in the county of 011011- daga and State of New York, have invented a new and useful Lamp-Shade Holder. of which the following is a specification.

My. invention has for its object the pro duction of a lamp shade holder adapted to be connected to incandescent lamp sockets, and it consists in the combinations and constructions hereinafter set forth and claimed.

In describing this invention, reference'is had to the accompanying drawing, in which like characters designate corresponding parts in all the views.

Figure l is an elevation of my lamp shade holder attached to one form of an incandescent electric lamp socket. Fig. 2 is a view similar to Fig. 1 showing the operation of the collar of the shade holder and contiguous parts when the shade holder is being sprung on the socket over the head thereof. Fig". 3 is a plan of my lamp shade holder.

This lamp shade holder comprises a hollow body 1 having means as screws 2 at one end for engaging a lampshade, the body also having; three arms 3 intermediate of its ends and converging toward the axis of the shade holder and spaced substantially equidistant apart, and an enpansible and contractile collar a carried by said arms.

Usually, the body is pressed from a single piece of sheet metal. The collar alis here shown as divided midway between two of the arms 3, and the divisions thereof are provided with clamping means for contracting the collar on a socket 5, and the other two portions of the collar between arms 3 are provided with means for increasing the elasticity of said portions and permitting' the same to twist or distort duringthe expansion of said collar over the head 6 of the lamp socket from its normal position, as shown in Fig. 1 to the position shown in Fig. 2, and as here shown, this means comprises transverse crimps or corrugations 7 in two portions of the collar between arms 3. The crimps or corrugations 7 project out wardly from the contiguous portions of the collar l and hence the portions of the collar on opposite sides of the corrugations lie flatwise against the support as a lamp socket to which the holder is attached. Said corrugations render the collar elastic in order that it maybe easily but not permanently distorted, without weakening the same and decreasing its capability of being firmly 9 extends through said perforations for contracting the collar upon the lamp socket. Preferably, the portions of the collar between the arms 3 are compressed inwardly into arcs of less radii than the normal radius of the collar, that is, the radius of the arc of any one of the parts 10 joined to the upper ends of the arms 3. The corrugations or crimps 7 are usually formed in the compressed portio-ns and take up the surplus metal due to the compressing of two of such portions into the arcs of less radii, in addition to rendering the collar elastic so that it may be readily sprung over the beads of lamp sockets without permanent distortion. The compressing inwardly of portions of the collar also provides bearing); surface spaced apart at intervals around the collar, for engaging the lamp socket.

Heretofore, lamp shade holders made of one piece of sheet metal. have had but two arms supporting the clamping collar in order that the collar could he sprung onto the sockets over the beads thereof without twisting, warping or stretching the collar, and in most instances two arms are inadequate to properly make a rigid structure and support a lamp shade. However, where more than two arms are provided and the collar is forced to expand over the head of a lamp socket, the undivided portions of such collar are twisted and stretched out of shape during the expansion of the collar over the head of the lamp socket owing to the fact that the ends of the two arms nearest the line of division of the collar have a greater movement outwardly or radially during such expansion than the third arm. Oftentimes, when more than two arms are used the collar and arms have been connected by pins which fit loosely in order to permit of a limited amount of play between the collar and arms during the expansion of the collar over the hen d of the socket. Such twisting or distortion of the portions of the collar is undesirable, renders the collar weak, and oftentimes the distortion is permanent so that the collar does not spring back to its original form. Owing to the transverse coriugations or crimps 7 of the collar l, such twisting and distor ion is permitted without weakening the collar, and while the collar is being expanded over the bead of the socket, the crimps or corrugations 7 of the undivided portions between the arms 3 permit distortion or" the collar without liability of injuring the same.

What I claim, is

l. A lamp shade holder comprising body having means for engaging a lamp shade, arms spaced apart intermediate of its ends, an expansible and contractile collar for engaging a support, the collar being carried by the arms, and a portion of the collar between the arms being compressed into an arc of less radius than the normal radius of the collar, and said portion being formed with a transverse corrugation projecting outwardly, a portion of the collar unprovided with a corrugation being split, and clamping means coasting with the collar on opposite sides of the split thereof, substantially as and for the purpose described.

2. A lamp shade holder comprising a body having means for engaging a lamp shade, arms spaced apart intermediate of its ends, and an expansible and contractile collar for engaging an electric lamp socket, the collar being carried by the arms, and a portion of the collar beingcompressed into an arc of less radius than the normal. radius of the collar, substantially as and for the purpose set forth. j v

3. A lamp shade holder comprising a body having means for engaging a lamp shade, arms spaced apart intermediate of its ends, and an expansible and contractile collar for engaging an electric lamp socket, the collar being carried by the arms, and portions of the collar spaced apart being compressed into arcs of less radii than the normal radius of the collar, substantially as and for the purpose described. Y

4. A lamp shade holder comprising a body having means for supporting a lamp shade, arms spaced. apart intermediate of its ends, and an expansible and contractile collar for engaging an electric lamp socket, the collar being carried by the ends of the arms and being fixed thereto, the portions of the collar between the arms being compressed inwardly and located in arcs of less radii than the radii of the arcs in which are located the parts of the collar joined to the ends of the arms, and means for contracting the collar on such socket, substantially as and for the purpose specified. 1 j

5. A lamp shade holder comprising a body having means for supporting a lamp shade, arms spaced apart intermediate of its ends, and an expansible and contractile collar for engaging an electric lamp socket, the collar being carried by the ends of the arms and being fixed thereto, the portions of the collar between the arms being compressed and located in arcs of less radii than the radii of the arcs in which are located the parts of .the collar joined to the ends of the arms,

and the compressed portions of the collar being formed with means rendering the same elastic and permitting said compressed portions to twist during the expanding of the collar on the lamp socket, substantially as and for the purpose set forth.

6. A lamp shade holder comprising a body having means for supporting a lamp shade, arms spaced apart intermediate of its ends, and an expansible and contractile collar for engaging an electric lamp socket, the collar being carried by the ends of the arms and secured thereto, the portions of the collar between the arms being compressed and located in arcs of less radii than the radii of the arcs in which are located the parts of the collar joined to the ends of the arms, and said portions between the arms being formed with transversely extending corrugations projecting outwardly, and means for contracting the collar on such socket, substantially as for th purpose described.

7. A lamp shade holder comprising a body having means at one end for supporting a lamp shade, three arms spaced equidistant apart intermediate of its ends, and an expansible and contractile collar for engaging an electric lamp socket, the collar being.

formed integral with the arms and portions of the collar between the arms being compressed and located in arcs of less radii than the radii of the arcs in which are located the parts of the collar joined to the arms, and two of said portions being formed with transversely extending corrugations projecting outwardly, the third of such portions of the collar located between said arms being divided transversely, and the ends thereof t'rminating at the line of division being bent outwardly forming ears, and clamping means enacting with the ears for contracting the collar on such socket, substantially as and for the purpose specified.

In testimony whereof, I have hereunto signed my name in the presence of two attesting witnesses, at Syracuse, in the county of Onondaga, in the State of New York, this 30th day of September, 1910.

SAMUEL B. VAN RANST.

Witnesses C. G. SoHoENEcK, LYNFORD J. WELLS.

Copies of this patent may be obtained for five cents each, I) addressing the commissioner of Yatnfl. Washington, D. G. 

